I did use a mix of parts.........but the channel is brand new. I have two more regulators- any way to tell if what I have on is a smoker? It does appear to not go up evenly. I have not installed the new track on the other side yet- planned to get this one done first. Now maybe I will to see how it works? George

THe wheels are staying on the regulator- it just pops out of the track at the front/lower track. I shimmed out the track some and that helped.